package com.example.yls.demoa;

import android.content.Intent;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.Button;



public class MainActivity extends AppCompatActivity {
    private Button btnStartB;
    private  final String TAG="Activity";

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        btnStartB=findViewById(R.id.btn_start_b);
        btnStartB.setOnClickListener(new View.OnClickListener(){
            @Override
            public void onClick(View view){
                Intent intent =new Intent();
                intent.setClass( MainActivity.this,
                        ActivityB.class);
                startActivity(intent);
            }
        });
    }

    protected void onStart(){
        super.onStart();
        Log.e(TAG, "onStart");
    }
    @Override
    protected void onRestart() {
        super.onRestart();
        Log.e(TAG, "onRestart");
    }
    @Override
    protected void onPause() {
        super.onPause();
        Log.e(TAG, "onPause");
    }
    @Override
    protected void onResume() {
        super.onResume();
        Log.e(TAG, "onResume");
    }
    @Override
    protected void onStop() {
        super.onStop();
        Log.e(TAG, "onStop");
    }
    @Override
    protected void onDestroy() {
        super.onDestroy();
        Log.e(TAG, "onDestroy");
    }
}
